Mariano Fernández-Fairén

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STUDY DESIGN Prospective randomized study on 82 patients with degenerative lumbar spondylolisthesis, having undergone posterolateral fusion with bilateral or unilateral instrumentation. OBJECTIVE To determine the effectiveness of unilateral pedicle instrumentation in clinical outcome and rate of union in comparison with the classic bilateral system. (More)
BACKGROUND Conversion of hip arthrodesis to a THA reportedly provides a reasonable solution, improving function, reducing back and knee pain, and slowing degeneration of neighboring joints associated with a hip fusion. Patients generally are satisfied with conversion despite the fact that range of mobility, muscle strength, leg-length discrepancy (LLD),(More)
We reviewed 263 consecutive patients with failed acetabular components after total hip arthroplasty that were revised using porous tantalum acetabular components and augments when necessary. The mean follow-up was 73.6 months (range, 60-84 months). The improvement of mean Harris hip score, Western Ontario and McMaster Osteoarthritis Index, and University of(More)
BACKGROUND Porous tantalum is an option of cementless fixation for TKA, but there is no randomized comparison with a cemented implant in a mid-term followup. QUESTIONS/PURPOSES We asked whether a tibial component fixed by a porous tantalum system might achieve (1) better clinical outcome as reflected by the Knee Society Score (KSS) and WOMAC(More)
Yttria-stabilized tetragonal zirconia may undergo extensive transformation to the monoclinic phase under mechanical and/or hydrothermal stress, with degradation of mechanical and tribologic properties. We hypothesized progressive phase transformation of zirconia in service in vivo is directly related to the time of implantation and to patient-related(More)
This review summarizes the existing economic literature, assesses the value of current data, and presents procedures that are the less costly and more effective options for the treatment of periprosthetic infections of knee and hip. Optimizing antibiotic use in the prevention and treatment of periprosthetic infection, combined with systemic and behavioral(More)
We performed a series of repairs of Achilles tendon ruptures in athletes using suture augmented with a polyethylene terephthalate mesh synthetic graft. No postoperative immobilization was used. The 29 patients were aged 25 to 54 years and all practiced sports a minimum of 4 hours weekly. At the followup, ranging from 6 months to 5 years, ankle mobility was(More)
INTRODUCTION This multi-center study (Cabuenes Hospital and Santa Lucia University Hospital) assessed the results of a retrospective and ongoing series of 135 total hip arthroplasties (THA) in which a latest generation dual-mobility cup was implanted. MATERIAL AND METHODS A total of 135 THAs performed between 2005 and 2008 were analyzed. Mean follow-up(More)
AIM The effective results shown in the porous systems of tantalum employed for the use of osseointegrates has been demonstrated by means of animal experimentation. However, there is a total lack of any research studies on the osseointegration of tantalum implants from retrieval of the same after a period of time whereby the material had been implanted(More)